Home / 721,347.54-1,082,119.68-300,525

Finding the Fourth Proportional to 721,347.54, 1,082,119.68 and 300,525

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Solution

The fourth proportional to 721,347.54, 1,082,119.68 and 300,525 is: 450,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,347.54 : 1,082,119.68 = 300,525 : x
  2. Step 2: Convert to fraction form
    721,347.54/1,082,119.68 = 300,525/x
  3. Step 3: Cross multiply
    721,347.54x = 1,082,119.68 × 300,525
  4. Step 4: Simplify right side
    721,347.54x = 325,204,016,832
  5. Step 5: Solve for x
    x = 325,204,016,832/721,347.54
  6. Step 6: Final answer
    x = 450,828.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.